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class TestParquetFloatStatistics < Test::Unit::TestCase
  include Helper::Buildable

  def setup
    omit("Parquet is required") unless defined?(::Parquet)
    @file = Tempfile.open(["data", ".parquet"])
    @table = build_table("float" => build_float_array([nil, -2.9, 2.9]))
    writer = Parquet::ArrowFileWriter.new(@table.schema, @file.path)
    chunk_size = 1024
    writer.write_table(@table, chunk_size)
    writer.close
    reader = Parquet::ArrowFileReader.new(@file.path)
    @statistics = reader.metadata.get_row_group(0).get_column_chunk(0).statistics
  end

  test("#min") do
    assert_equal(-2.9, @statistics.min.round(3))
  end

  test("#max") do
    assert_equal(2.9, @statistics.max.round(3))
  end
end
